The following includes all spoken or narrated lines of all acts 2-4 without any consideration to branching, i.e. if a line appears two times in the script it will be counted two times here.
By filesize (according to SC):
#1: Shizune (658KB)
#2: Rin (640KB)
#3: Lilly (608KB)
#4: Hanako (529KB)
#5: Emi (514KB)
Files contain lots of direction and comments - only around 46% of all lines contain spoken or written text that the reader actually gets to see - so let's look at the line count. (Broghurt's count is very similar to mine; I will use my own count anyway.)
By linecount:
#1: Emi (5.769 lines)
#2: Rin (5.597 lines)
#3: Shizune (4.867 lines)
#4: Lilly (4.802 lines)
#5: Hanako (4.074 lines)
Finally, the linecount doesn't tell us anything about the amount of text, so let's do a wordcount:
By wordcount:
#1: Shizune (90.787 words)
#2: Rin (85.014 words)
#3: Lilly (80.431 words)
#4: Hanako (73.545 words)
#5: Emi (65.033 words)
It's interesting that Emi's path has the most lines but the fewest words:
By words/line
#1: Shizune (18,7)
#2: Hanako (18,1)
#3: Lilly (16,7)
#4: Rin (15,2)
#5: Emi (11,3)
Note that in Shizune's path, there are a lot of lines consisting of only "...", so this makes her lead all the more impressive.
Can't be bothered to do a charactercount right now
